Lots More Information

Related HowStuffWorks Articles

• How Corrective Lenses Work
• How LASIK Works
• How Light Works
• How Refractive Vision Problems Work
• How Vision Works
• How Artificial Vision Will Work
• What does it mean when someone has 20/20 vision?

More Great Links

• American Academy of Ophthalmology
• American Optometric Association
• Contact Lens Council
• Prevent Blindness America

Sources

• "All About Your Eyes." The Contact Lens Council.
  http://www.contactlenscouncil.org/pcon-youreyes.htm
• American Optometric Association
  http://www.aoa.org/
• "Buying Contact Lenses on the Internet, by Phone, or by Mail: Questions and Answers." FDA.
  http://www.fda.gov/cdrh/consumer/buycontactqa.html
• "Contact Lenses." The Cleveland Clinic Health Information Center.
  http://www.clevelandclinic.org/health/health-info/docs/3000/3031.asp?index=10737
• "Correct Your Vision: Envision the Difference." Bausch & Lomb.
  http://www.bausch.com/us/vision/forties/correct.jsp
• DeFranco, Liz. "Multifocal Contact Lenses." AllAboutVision.
  http://www.allaboutvision.com/over40/multifocalcls.htm
• Del Pizzo, Nancy. "Contact Lenses for the "Hard-to-Fit" Patient." AllAboutVision. http://www.allaboutvision.com/contacts/hard_to_fit.htm
• Del Pizzo, Nancy and Liz Segre. "Toric Contact Lenses for Astigmatism."
  http://www.allaboutvision.com/contacts/torics.htm
• "Do You Lead an Active Lifestyle?" The Contact Lens Council.
  http://www.contactlenscouncil.org/pcon-lifestyle.htm
• "E-commerce Increases Choice and Convenience for Contact Lens Wearers." FTC, March 2004.
  http://www.ftc.gov/opa/2004/03/clrreport.htm
• Farley, Dixie. "Keeping an Eye on Contact Lenses." FDA.
  http://www.fda.gov/fdac/features/1998/298_lens.html
• "The History of Contact Lenses." Contact Lens Council.
  http://www.contactlenscouncil.org/history.htm
• Rosser, Dr. Paul. "Contact Lenses." Medic8 Family Health Guide.
  http://www.medic8.com/healthguide/articles/contactlenses.html
• "What are Contact Lenses Made of?" Ask Yahoo, July 16, 2002.
  http://ask.yahoo.com/20020716.html
• "Refractive Errors." Alcon Labs.
  http://www.alconlabs.com/ca_en/eo/clc/clc2.jhtml
• "Contact Lenses." Prevent Blindness America.
  http://www.preventblindness.org/eye_problems/contacts.html
• "The History of Contact Lenses." EyeTopics, November 14, 2004.
  http://www.eyetopics.com/articles/18/1/The-History-of-Contact-Lenses
• Nike MAXSIGHT Sport-Tinted Contact Lenses FAQs. Bausch & Lomb.
  http://www.bausch.com/us/vision/products/softcontacts/nikemaxsight_faq.jsp
• "New Contact Lenses Clear Baseball's Future." Sporting News, April 21, 2005.
  http://www.sportingnews.com/experts/stan-mcneal/20050421.html